I've seen the #avangers infinity wars twice now, but I still don't get #Thanos plan. Maybe someone who read the comics could help? Show more

I understand he wants to kill half of the population in each planet, but:* Are the lifeforms going to be like half of each species by individual, by the kilo..?* Or will it be half of the total life, so it wouldn't matter how much of each species is present?* Is he considering viruses a form of life?* Will be half of each age, for example half of kids, half of adults, half of old people..?* Will it be randomized in terms of location? For example, half every x square meters?